The Castelli Mortirolo 6S Jacket is part of Castelli's winter range, designed to provide warmth without overheating. Ideal for dry, cold mornings, this jacket is perfect for cyclists who run hot.The upper chest and sleeves of the jacket are made from windproof yet breathable GORE-TEX INFINIUM WINDSTOPPER® X-Fast fabric, which includes a fleece liner for added warmth and softness. The lower body features thinner GORE-TEX INFINIUM WINDSTOPPER® fabric.The back of the jacket is constructed from a highly breathable fabric without the windproof veneer. This allows moisture to escape freely, helping you maintain a stable core temperature in cool weather, no matter how active you are.The Castelli Mortirolo 6S Jacket is minimalist in design, with a reflective panel on the chest for visibility and useful pockets for storage. It weighs 337g and is suitable for temperatures ranging from 6-14°C (43-57°F).Key Features:- Made for warm winters and cyclists who run hot- GORE-TEX INFINIUM WINDSTOPPER® X-Fast fabric on the upper chest and sleeves- GORE-TEX INFINIUM WINDSTOPPER® fabric on the lower front- Breathable Warmer fabric on the back- 3 rear pockets for storage- Reflective panel on chest- Weighs 337g (large size)- Suitable for temperatures from 6-14°C (43-57°F)